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Kuranishi Structures and Virtual Fundamental Chains


Kuranishi Structures and Virtual Fundamental Chains


Springer Monographs in Mathematics

von: Kenji Fukaya, Yong-Geun Oh, Hiroshi Ohta, Kaoru Ono

106,99 €

Verlag: Springer
Format: PDF
Veröffentl.: 16.10.2020
ISBN/EAN: 9789811555626
Sprache: englisch

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Beschreibungen

<div>The package of Gromov’s pseudo-holomorphic curves is a major tool in global symplectic geometry and its applications, including mirror symmetry and Hamiltonian dynamics. The Kuranishi structure was introduced by two of the authors of the present volume in the mid-1990s to apply this machinery on general symplectic manifolds without assuming any specific restrictions. It was further amplified by this book’s authors in their monograph <i>Lagrangian Intersection Floer Theory</i> and in many other publications of theirs and others. Answering popular demand, the authors now present the current book, in which they provide a detailed, self-contained explanation of the theory of Kuranishi structures.</div><div><br></div><div>Part I discusses the theory on a single space equipped with Kuranishi structure, called a K-space, and its relevant basic package. First, the definition of a K-space and maps to the standard manifold are provided. Definitions are given for fiber products, differential forms, partitions of unity, and the notion of CF-perturbations on the K-space. Then, using CF-perturbations, the authors define the integration on K-space and the push-forward of differential forms, and generalize Stokes' formula and Fubini's theorem in this framework. Also, “virtual fundamental class” is defined, and its cobordism invariance is proved.</div><div><br></div><div>Part II discusses the (compatible) system of K-spaces and the process of going from “geometry” to “homological algebra”. Thorough explanations of the extension of given perturbations on the boundary to the interior are presented. Also explained is the process of taking the “homotopy limit” needed to handle a system of infinitely many moduli spaces. Having in mind the future application of these chain level constructions beyond those already known, an axiomatic approach is taken by listing the properties of the system of the relevant moduli spaces and then a self-contained account of the construction of the associated algebraic structures is given. This axiomatic approach makes the exposition contained here independent of previously published construction of relevant structures.&nbsp;</div><div><br></div>
<div>1.Introduction.- 2.Notations and conventions.- 3.Kuranishi structure and good coordinate system.- 4.Fiber product of Kuranishi structures.- 5.Thickening of a Kuranishi structure.-&nbsp; 6.Multivalued perturbation.-&nbsp; 7.CF-perturbation and integration along the fiber (pushout).- 8.Stokes' formula.- 9.From good coordinate system to Kuranishi structure and back with CF-perturbations.- 10.Composition formula of smooth correspondences.- 11.Construction of good coordinate system.- 12.Construction of CF-perturbations.- 13.Construction of multivalued perturbations.- 14.Zero and one dimensional cases via multivalued perturbation.- 15.Introduction to Part 2.- 16.Linear K-system: Floer cohomology I: statement.- 17.Extension of Kuranishi structure and its perturbation from boundary to its neighborhood.- 18.Smoothing corners and composition of morphisms.- 19.Linear K-system: Floer cohomology II: proof.- 20.Linear K-system: Floer cohomology III: Morse case by multisection.- 21.Tree-like K-system: A1 structure I: statement.- 22.Tree-like K-system: A1 structure II: proof.- 23. Orbifold and orbibundle by local coordinate.- 24.Covering space of effective orbifold and K-space.-&nbsp; 25.Admissible Kuranishi structure.- 26.Stratified submersion to a manifold with corners.- 27.Local system and smooth correspondence in de Rham theory with twisted coefficients.- 28.Composition of KG and GG embeddings: Proof of Lemma 3.34.- 29.Global quotient and orbifold.&nbsp;</div><div><br></div>
The package of Gromov’s pseudo-holomorphic curves is a major tool in global symplectic geometry and its applications, including mirror symmetry and Hamiltonian dynamics. The Kuranishi structure was introduced by two of the authors of the present volume in the mid-1990s to apply this machinery on general symplectic manifolds without assuming any specific restrictions. It was further amplified by this book’s authors in their monograph&nbsp;<i>Lagrangian Intersection Floer Theory</i>&nbsp;and in many other publications of theirs and others. Answering popular demand, the authors now present the current book, in which they provide a detailed, self-contained explanation of the theory of Kuranishi structures.<div><br></div><div>Part I discusses the theory on a single space equipped with Kuranishi structure, called a K-space, and its relevant basic package. First, the definition of a K-space and maps to the standard manifold are provided. Definitions are given for fiber products, differential forms, partitions of unity, and the notion of CF-perturbations on the K-space. Then, using CF-perturbations, the authors define the integration on K-space and the push-forward of differential forms, and generalize Stokes' formula and Fubini's theorem in this framework. Also, “virtual fundamental class” is defined, and its cobordism invariance is proved.</div><div><br></div><div>Part II discusses the (compatible) system of K-spaces and the process of going from “geometry” to “homological algebra”. Thorough explanations of the extension of given perturbations on the boundary to the interior are presented. Also explained is the process of taking the “homotopy limit” needed to handle a system of infinitely many moduli spaces. Having in mind the future application of these chain level constructions beyond those already known, an axiomatic approach is taken by listing the properties of the system of the relevant moduli spaces and then a self-contained account of the construction of the associated algebraic structures is given. This axiomatic approach makes the exposition contained here independent of previously published construction of relevant structures.&nbsp;</div><div><br></div>
<div>Is the first book to provide a foundation of techniques of virtual fundamental chain by the originators of the theory&nbsp;</div><div><br></div><div>Makes a timely appearance with details of the theory much needed for further development of the field&nbsp;</div><div><br></div><div>Contains detailed explanations on orbifolds, collected in a single volume&nbsp;</div>

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